CKEditor 5 video embed is not displayed on the presentation page - javascript

I know that this has been asked many times, but I open this discussion to solve my problem and to summarize all we know about this topic to help people in the future.
So, let's go.
We want to upload a video (e.g. from YouTube). We can do this pasting the video url or using the MediaEmbed button.
We have two possibility.
We can set or not in our editorConfig
mediaEmbed: { previewsInData: true }
WITHOUT previewsInData: true we obtain something like this:
<figure class="media">
<oembed url="https://www.youtube.com/watch?v=something"></oembed>
</figure>
Instead WITH previewsInData: true we obtain something like this
<figure class="media">
<div data-oembed-url="https://www.youtube.com/watch?v=vsl3gBVO2k4&ab_channel=H%C3%A9lderPalma">
<div style="position: relative; padding-bottom: 100%; height: 0; padding-bottom: 56.2493%;">
<iframe src="https://www.youtube.com/embed/vsl3gBVO2k4" style="position: absolute; width: 100%; height: 100%; top: 0; left: 0;" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen="">
</iframe>
</div>
</div>
</figure>
In both cases i'm able to see the preview of the youtube video in my CKEditor.
But when I save the content of the editor and I get that to display it in my presentation page the video is not displayed.
Reading the other discussions here on the forum I couldn't figure out if this is just my problem or not. Many solutions concerning adding previewsInData: true in editorConfig, but for me absolutely nothing changes.
I think that the tag figure and the oembed div is useful to CKEditor to display a preview of the video. We know that this preview is like a picture, you can't play the video, you can't open in a new page, etc. This is ok, but i want to see the video in my presentation page.
So, where is the problem?
Is there something to change on the presentation page to have the video displayed?
Should I search for the figure tag and replace it with an iframe server side?
Any ideas?
I hope we can find a permanent solution to this problem.

You should indeed use a 'frontend' to display the oembed tags, like it says in the manual on : https://ckeditor.com/docs/ckeditor5/latest/features/media-embed.html#displaying-embedded-media-on-your-website
You can provide your own mediaprovider using this :
ClassicEditor
.create( editorElement, {
plugins: [ MediaEmbed, ... ],
mediaEmbed: {
extraProviders: [
{
name: 'extraProvider',
url: /^example\.com\/media\/(\w+)/,
html: match => '...'
},
...
]
}
} )
.then( ... )
.catch( ... );
and the html could be something like :
...
html: match =>
'<div style="position:relative; padding-bottom:100%; height:0">' +
'<iframe src="..." frameborder="0" ' +
'style="position:absolute; width:100%; height:100%; top:0; left:0">' +
'</iframe>' +
'</div>'
you can find more in de docs, here :
https://ckeditor.com/docs/ckeditor5/latest/api/module_media-embed_mediaembed-MediaEmbedProvider.html
you could also do something like this yourself, avoiding external oembed providers:
window.addEventListener('load', function(){
document.querySelectorAll('oembed[url]').forEach( element => {
// get just the code for this youtube video from the url
let vCode = element.attributes.url.value.split('?v=')[1];
// paste some BS5 embed code in place of the Figure tag
element.parentElement.outerHTML= `
<div class="ratio ratio-16x9">
<iframe src="https://www.youtube.com/embed/${vCode}?rel=0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
</div>`;
});
})
You would ofcourse have to upgrade the script for all different versions of embedded content, this example will just work for youtube. You would have to analyze the URL from the oembed tag to check what is embedded so you can add the right code for each variant.

Related

How do I make iframes responsive without using div?

I learnt from this post (Making an iframe responsive) that make an iframe responsive by adding a container with a class around the iframe, for instance,
<div class="intrinsic-container">
<iframe width="560" height="315" src="https://www.youtube.com/embed/I4YoBuJCbfo" frameborder="0" allowfullscreen></iframe>
</div>
Is there possible to embed <iframe>...</iframe> directly in my posts (without using <div>...</div>)? And I tried these solutions, but all of them don't work.
PS: I use two columns layout in WordPress. The ratio of video can be 16:9 (from YouTube), 4:3 (from Tencent), etc. Here is a temporary demo.
If you can use viewport units that is doable without an extra wrapper element.
Full page width:
iframe {
width: 100vw;
height: 56.25vw; /*16:9*/
}
<iframe width="560" height="315" src="https://www.youtube.com/embed/I4YoBuJCbfo" frameborder="0" allowfullscreen></iframe>
Half page width:
iframe {
width: 50vw;
height: 28.125vw; /*16:9*/
}
<iframe width="560" height="315" src="https://www.youtube.com/embed/I4YoBuJCbfo" frameborder="0" allowfullscreen></iframe>
The key here is the height and width ratio you want to keep. I took the liberty of using jQuery instead of javascript to do this. The code triggers upon clicking the button. It calculates the width and height ratio of the iframe and adapts both to your needs (in this case I assumed you wanted it to fill the containers width).
You'll probably want to loop through all videos if you have multiple on one page and run the code on window resizing and page-loading.
Here is the JSFiddle
Hope it helps :)
html
<iframe id="iframe" width="640" height="360" src="https://www.youtube.com/embed/4SDVkdcO8ts" frameborder="0" allowfullscreen></iframe>
<button id="button" style="float: left">Click me!</button>
jQuery
$(document).ready(function(){
$("button").click(function(){
var ratio = $("#iframe").height() / $("#iframe").width();
$("#iframe").width("100%");
var newWidth = $("#iframe").width();
$("#iframe").width(newWidth);
$("#iframe").height(newWidth*ratio);
$("button").text("resize the window and click me again!");
});
});
Use bootstrap class to make iframe responsive.
<div class="embed-responsive embed-responsive-16by9">
<iframe class="embed-responsive-item" allowfullscreen
src="//www.youtube.com/embed/zpOULjyy-n8?rel=0" >
</iframe>
</div>

fb-like plugin - Execute code after facebook plugins are loaded

I have included the fb-like plugin in a website that shows tooltips when the mouse is over any elements that have a title property.
The issue is that the facebook plugin adds a title attribute to the iframe, which is loaded after, and I can't seem to find a way to remove it.
The facebook plugin code:
<div class="fb-like" data-href="facebook.com/saekthmey"; data-layout="standard" data-action="recommend" data-show-faces="true" data-share="true"></div>
It generates:
<iframe class="" src="http://www.facebook.com/v2.3/plugins/like.php?action=recommend&app_id=1098294926865015&channel=http%3A%2F%2Fstatic.ak.facebook.com%2Fconnect%2Fxd_arbiter%2F1ldYU13brY_.js%3Fversion%3D41%23cb%3Df1931e415abd1ea%26domain%3Dlocalhost%26origin%3Dhttp%253A%252F%252Flocalhost%253A3000%252Ff37c5673a2d1dae%26relation%3Dparent.parent&container_width=294&href=https%3A%2F%2Fwww.facebook.com%2Fsaekthmey&layout=standard&locale=fr_FR&sdk=joey&share=true&show_faces=true" style="border: medium none; visibility: visible; width: 450px; height: 57px;" title="fb:like Facebook Social Plugin" scrolling="no" allowfullscreen="true" allowtransparency="true" name="f305ebf93e709ca" frameborder="0" height="1000px" width="1000px"></iframe>
I assume there is something like this somewhere in the website $('*[title]).tooltip() but I am not going to remove it anyway.
In other words, I need to execute code after the plugin is loaded.
I found this: Facebook like box load event jquery but it did not work.

disable video autoplay in twitter bootrap and stop video when modal is closed

I'm embedding a local video to my page using Bootstrap 3
I use this code inside the modal
<div class="embed-responsive embed-responsive-16by9">
<iframe class="embed-responsive-item" height="300" width="480"
src="hunnybunny.mp4"></iframe></div>
How can I prevent this video from autoplay? I also want the video to stop when the modal window is closed.
I was having issues with this and found a workaround. Drop the iframe in the html, for example:
(Note: I wanted video on the left so i put it in a row in the first 7 columns, also the "class = left_vid" is defined in my "override" custom linked style sheet)
<div class="row">
<div class="col-md-7">
<video controls class= left_vid> <source src="vid.mp4" type="video/mp4">
This browser does not display this video type </video>
</div>
<div class="col-md-5">
<p> Text stuff </p>
</div>
</div>
In the style.css
.left_vid {
display:block;
margin-left:auto;
margin-right:auto;
width: 80%;
height:auto;
}
Is it necessary to use an iframe for this? If not have look at the HTML5 video-tag:
http://www.w3schools.com/html/html5_video.asp
You are using iframe, you can not stop playing, you can only remove element like this
$('#myModal').on('hidden.bs.modal', function () {
$( ".embed-responsive-16" ).remove();
})
This is just example, we dont have all you code :(

Youtube video shows on click of image

I've looked at a few implementations of this and so far none have worked so I'm resorting to posting. The concept is: a placeholder image which once clicked changes into the video and autoplays.
Current HTML:
<div id="ytvideo" style="display:none;">
<iframe width="939" height="528" id="ytvideo" frameborder="0" allowfullscreen></iframe>
</div>
<img class="aligncenter size-full" id="homevideo" alt="placeholder" src="/wp-content/uploads/2013/10/placeholder.jpg" width="940" height="548" />
Current JS:
jQuery(document).on('click','#homevideo',function(e){
jQuery('#ytvideo').show();
jQuery('#homevideo').hide();
jQuery('#ytvideo').attr("src","www.youtube.com/embed/[myvidid]?autoplay=1");
jQuery("#ytvideo").attr('src', jQuery("#ytvideo", parent).attr('src') + '?autoplay=1');
});
I've looked at trying to reload the iframe but that doesn't seem to work.
Any ideas?
MARKED: FIXED
You forgot the protocol - www.youtube.com/… would link to folder on the server.
With protocol it works fine – I’d suggest creating the whole iframe dynamically though, because with an empty src attribute at the beginning it would load the same page it is embedded in.
<div id="ytvideo" style="display:none;"></div>
<!-- replaced your image with a span here for fiddle -->
<span id="homevideo" data-vidid="mbOEknbi4gQ">click me</span>
$(document).on('click','#homevideo',function(e){
$('#homevideo').hide();
$('#ytvideo').html('<iframe width="939" height="528" id="ytvideo" frameborder="0" allowfullscreen src="http://www.youtube.com/embed/'+$(this).attr("data-vidid")+'?autoplay=1"></iframe>').show();
});
http://jsfiddle.net/HuVqm/
As discussed in one of the comments, you can get both the img and the video from the api.
This would be good if you didn't want to maintain the image, just wanted it to pull through from YouTube. (However I am not sure that YT provide an image as large as 939 so in your case you might still want to use your own image). I have put in a random channel name 'RIDEChannel' feel free to change that with your channel name.
<div id="vid"></div>
$.getJSON("http://gdata.youtube.com/feeds/api/users/RIDEChannel/uploads?max-results=1&v=2.1&alt=jsonc&callback=?", function (myvid) {
var vid = $("#vid");
$.each(myvid.data.items, function (i, item) {
vid.append("<img width='300' height='250' src='" + item.thumbnail.hqDefault + "'>");
$(document).on("click", "#vid img", function (event) {
vid.append("<iframe width='300' height='250' src='http://www.youtube.com/embed/" + item.id + "?autoplay=1' frameborder='0'></iframe>");
$(this).hide();
});
});
});
So the problem laid with the youtube url missing the http:// prefix and also for the fact that the iframe name was the same as the div it was enclosed in. (How silly of me) Thus it was attaching the SRC to the div, not the iframe.
Working DEMO
Try this,
First you cannot have same id for more than one elements <div id="ytvideo" and <iframe id="ytvideo"
[myvidid] in http://www.youtube.com/embed/[myvidid]?autoplay=1 should be replaced with the id of the video
html
<div id="ytvideo1" style="display:none;">
<iframe width="939" height="528" id="ytvideo" frameborder="0" allowfullscreen></iframe>
</div>
<img class="aligncenter size-full" id="homevideo" alt="placeholder" src="http://thefabweb.com/wp-content/uploads/2012/12/6191814472_fa47c79b67_b-900x600.jpg" width="940" height="548" data-vid='DBNYwxDZ_pA'/>
code
jQuery(document).on('click','#homevideo',function(e){
jQuery('#ytvideo1').show();
jQuery('#homevideo').hide();
jQuery('#ytvideo').attr("src","http://www.youtube.com/embed/"+$(this).data('vid')+"?autoplay=1");
});
If you have more than 1 video, it could be useful to store the url to the video in the html and use a class instead of an id.
Also, if you put the preview image into the background, behind the video, it will stay there until the iframe has loaded, reducing that "flickering" effect when clicked.
I also restructured the markup a bit to reduce redundancy, here I specify the size of the video and the video id only once.
Also, you should use jQuery's .one('click') instead of .click(), since you want that event listener removed after it has fired the first time.
html:
<div class="ytvideo"
data-video="73sgatbknvo"
style="width:939px; height:528px; background-image:url(http://lorempixel.com/939/528/)">
<div class="seo">
Have a meaningful description of the video here
</div>
</div>
CSS:
.ytvideo {
background-position: center;
background-size: contain;
background-repeat: no-repeat;
cursor: pointer;
}
.ytvideo iframe {
border-style: none;
height: 100%;
width: 100%;
}
.ytvideo .seo {
display: none;
}
jQuery:
$('.ytvideo[data-video]').one('click', function() {
$(this).html('<iframe allowfullscreen src="//www.youtube.com/embed/'+$(this).data("video")+'?autoplay=1"></iframe>');
});
If you want to support browsers with no script support, you'd have to add a "noscript" element in the .ytvideo div that already contains the iframe.
fiddle:
http://jsfiddle.net/6ARc7/

iframe.scrollTo() doesn't work for Excel/PowerPoint documents on iPad

I want to implement custom scrolling of iframe content for iPad. My solution is the following. I have iframe:
<div id="scroller" style="height: 300px; width: 100%; overflow: auto;">
<iframe height="100%" id="iframe" width="100%" name="iframe" src="1.pdf" />
</div>
And in javascript code I use:
top.frames['iframe'].scrollTo(x,y);
It works perfectly for pdf documents, but not for Excel and Power Point documents.
Does anyone have any suggestions?
It's not possible to show a worddocument or excel directly/correctly inside an Iframe.
You could use Google documents viewer/drive to present the documents with.
Check http://docs.google.com/viewer and https://drive.google.com/
But if it's possible, I would stick with PDF's

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